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musickatia [10]
3 years ago
14

How do i solve this using the substitution method

Mathematics
1 answer:
lana [24]3 years ago
5 0
First make them one side equation =0
0=-2y+4x+10
0=2y+6x-10 
0=2x
x=0
substituted 0 in any of the original equation 
2y=4(0)+10
2y=10 ....../2
y=5
check 2(5)=4(0)+10 .......>10=10
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IM SOO CONFUSEDD help???
lozanna [386]

Answer:

D.

Step-by-step explanation:

To tell whether the domains can include 0, all you need to do is find where x = 0, and whether the y-value is real.

h(x) = sqrt(2x^2 + 5x - 3)

= sqrt(0^2 + 5 * 0 - 3)

= sqrt(-3)

Since this includes the square root of a negative number, h(0) is an imaginary number. That means that we can eliminate choices A and B.

If you look at the graph of w(x), when x = 0, there is a real value for the y-value on the graph. But, if you think about it, if you have 0 workers, there is no way that you can still be producing wrenches. So, the domain cannot contain 0.

Your answer will be D.

Hope this helps!!

3 0
3 years ago
the main rotor of a helicopter rotates 430 times per minute. find the number of degrees through which a point on the main rotor
n200080 [17]

Answer:

2580 degrees rotated per second

Step-by-step explanation:

since  you have to find the degrees it rotates per second.

you need to divide 430 by 60 to find rotations per second

1)          430/60

             =  7.16666667 rotations per second

-then you have to multiply it by 360 degrees ,because their is 360 degrees in a circle

2)        7.16666667 (360)

            =  2580 degrees rotated per second

6 0
3 years ago
Simplify 270 ÷ 3[(4 - 3)3 - (-9)] - 53
Andreyy89
270 / 3 ( (4 - 3) 3 - (-9) ) - 53
270 / 3 (1 x 3 - (-9) ) - 53
270 / 3 (3 + 9) - 53
270 / 3 x 12 - 53
In PEMDAS, with multiplication and division, you must go left to right, not multiplication then division.
90 x 12 - 53
1080 - 53
1027 is your answer
4 0
3 years ago
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Where is the graph show the graph
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A contractor is building a circular swimming pool. The radius of the circle 12 feet. He needs to know the circumference in order
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C=Pi X D
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C = Pi X 24
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6 0
3 years ago
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